Dear list, I have problems to coerce a SpatialGridDataFrame object to a SpatialPixelDataFrame. I 've calculated a kerneldensity (splancs) and I want to convert the results from the SpatialGridDataFrame to a SpatialPixelDataFrame.
My R-code: >library (maptools) >library (splancs) >library (rgdal) > kcasesC67m<-spkernel2d(cases, pRBMS, h0=3500, gt) > kcontrolsC67m<-spkernel2d(controls, pRBMS, h0=3500, gt) > df<-data.frame(kcasesC67m=kcasesC67m, kcontrolsC67m=kcontrolsC67m) > spkratio<-SpatialGridDataFrame(gt, data = df) > spkratioP<-as(spkratio, "SpatialPixelDataFrame") But I get the error message: "No methods and no standards to convert SpatialGridDataFrame in SpatialPixelDataFrame". Many thanks for your help Dorothea _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
